With Han Sen's chess talent, he was unable to tell what was so special about the 17 stalemates. At the very least, he was unable to tell if any secrets had yet to be discovered.
"Does that mean the secret of the chessboards isn't actually in the chessboards?" Han Sen tried to analyze the stalemates via a different perspective.
Han Sen's Heavenly Go and Under the Sky Knife skills were heavily related to chess. So, he tried to separate the black chess pieces from the white chess pieces and started to move like a chess piece.
Han Sen went back to the first stalemate he saw. He thought of himself as a chess piece and started walking per the black chess pieces of the chessboard.
Han Sen quickly discovered that would not work. The locations of some of the chess pieces were in reverse to where he went. Unless he had eight pairs of legs, he would not be able to walk like that.
